Question: 3. Hovering ring: A long solenoid, with N turns, length L and radius a, has an alternating current flowing through it of form I

3. Hovering ring: A long solenoid, with N turns, length L and

3. Hovering ring: A long solenoid, with N turns, length L and radius a, has an alternating current flowing through it of form I = Io cos(wt). A conducting ring of radius b (b> a) is placed at the end of the solenoid, where the magnetic field is half its central value. a. What is the EMF induced in the loop? b. The loop has a resistance R; what is the current flowing through the loop? c. Explain (include drawing) how the loop hovers on top of the solenoid?

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